G.SR.08.03 Understand the definition of a circle; know and use the formulas for circumference and area of a circle to solve problems
METS-S/NETS-T
NET: 3.c. Evaluate and select information sources and digital tools based on the appropriateness to specific tasks
Essential Questions:
How was the formula for the area of a circle created?
Objectives:
Given multiple links on filamentality, write the answers to the scavenger hunt questions, with 95% accuracy
Tools and Resources:
Computer access
Rationale:
Given a multitude of computer resources, the students are asked to answer questions to a scavenger hunt. Little hints are given along the way. They learn through interactive lessons online, how the formulas for the unit circle came to be. By using the internet, the students are more motivated to learn, because it is not from a dull textbook.
Sequence of Activities:
Anticipatory Questions/Activity:
Say you were redecorating your room and you wanted to get a circular rug. You go shopping and see one that is six feet across. Doesn’t sound too big, but how much area exactly, will that rug cover up in your room, if you were to buy it.
Body of Lesson Plan: Segment #1 (Artifact: link to real world, website, book, picture, etc.)
Have the students find a rug that they would like to redecorate their room with using the website
make sure they choose one that is circular in form. To make the activity fun, ask why they chose it or what else they would do to their room. Interaction is key.
Segment #2 (Factual information/Vocab Includes sample feedback loop)
Using your rug pic as an example complete the following activity. Jing Tutorial for Segment 1 and 2 link is available below.
Let’s see what we already know about circles. Can anybody tell the teacher Parts of the circle. Some answers may include: Radius: the distance from the center to any edge Diameter: the distance from one edge to the other How else could you find the diameter? The diameter is also equal to 2*r or two times the radius The circumference is the distance around the outside of a circle Π is 3.14
Ok so what do you think I (the teacher) would need to use in order to find the area of a circle. The circumference and the radius Why? If you were to section off a circle it would like pieces of pizza, and one side would have part of the circumference while two sides would be the length of the radius.
This then gives the students the formula for the area of a circle
A=πr2
So then ask the students what they area of the rug the teacher wants would be. D=6 ft R= 3ft R2=9ft2 A= π9ft2 =28.26 ft2
egment #4 (Detailed directions on how to complete activity)
Using the Filamentality Scavenger hunt provided, the students will complete the review. Answers can be typed and printed out handwritten. Students must receive a 95% in order to have completed the lesson. Resources are given at the bottom of the hunt for students to find the answers within. If some students are more advanced, they may create their own scavenger hunt for extra practice, using the same format as the teachers.
Name:_Justine Lakosky
Segment #1
(Artifact: link to real world, website, book, picture, etc.)
www.overstock.com
make sure they choose one that is circular in form. To make the activity fun, ask why they chose it or what else they would do to their room. Interaction is key.
(Factual information/Vocab
Includes sample feedback loop)
Jing Tutorial for Segment 1 and 2 link is available below.
http://www.screencast.com/t/qABYAji5Q
Embedded image is available at the end of the lesson plan.
Let’s see what we already know about circles. Can anybody tell the teacher
Parts of the circle. Some answers may include:
Radius: the distance from the center to any edge
Diameter: the distance from one edge to the other
How else could you find the diameter?
The diameter is also equal to 2*r or two times the radius
The circumference is the distance around the outside of a circle
Π is 3.14
Ok so what do you think I (the teacher) would need to use in order to find the area of a circle.
The circumference and the radius
Why?
If you were to section off a circle it would like pieces of pizza, and one side would have part of the circumference while two sides would be the length of the radius.
This then gives the students the formula for the area of a circle
A=πr2
So then ask the students what they area of the rug the teacher wants would be.
D=6 ft
R= 3ft
R2=9ft2
A= π9ft2
=28.26 ft2
(Includes multiple intelligence strategy:
Hands-on, small groups, reteaching strategy)
Attached is the rubic for students to follow for given activity.
(Detailed directions on how to complete activity)
SAMPLE and ASSIGNMENT: Filamentality Scavenger Hunt